updated sponsors

[ci skip]

README.md

@@ -33,6 +33,7 @@ Cryptomator is provided free of charge as an open-source project despite the hig
     <tr>
       <td><a href="https://mowcapital.com/"><img src="https://cryptomator.org/img/sponsors/mowcapital.svg" alt="Mow Capital" height="40"></a></td>
       <td><a href="https://www.easeus.com/"><img src="https://cryptomator.org/img/sponsors/easeus.png" alt="EaseUS" height="40"></a></td>
+      <td><a href="https://www.hassmann-it-forensik.de/"><img src="https://cryptomator.org/img/sponsors/hassmannitforensik.png" alt="Hassmann IT-Forensik" height="40"></a></td>
     </tr>
   </tbody>
 </table>